People are sick and tired of car payments and insurance payments.
A subscription service has to pay for these too. They're just hidden from you. Plus there is the additional overhead from the subscription service company. Total cost per mile is roughly the same, the savings come from parking costs and not having to deal with age related problems on the cars because you wear them out with pure mileage before they get old.
You don't have the upfront cost of owning the car, but you end up paying more per mile than people who own cars. There's a tipping point where car-as-a-service don't make sense anymore and a lot of Americans are well past that point. In fact most people who live in the suburbs and anybody rural are past that point. If you don't have ready access to good mass transit then you probably need to own a car. If you do live in a city, then you have to weigh the car-as-a-service option against just using mass transit and taxies, and traditional car rental for those rare occasions where you need to travel a good distance from the city.
A method to send something from something via something after applying something so that someone can unapplying something to read the something on something on a computer.
Always draw your curves, then plot your reading.